The military’s gun-ban list kept by the FBI for dishonorably discharged service members exploded with more than 4,000 additional names -- 38 percent -- since an ex-airman killed dozens at a Texas church in November. Each branch of the service was responsible for keeping the list updated.

CNN reported that a review of records showed that 4,284 names have been added to the list of former military members who are now barred from owning firearms since former U.S. Air Force enlisted man Devin Patrick Kelley killed 26 people at the First Baptist Church in Sutherland Springs, Texas on Nov. 5, as reported by NBC News.

Despite Kelley being court-martialed in 2012 on charges of assaulting his wife and child and receiving a bad conduct discharge in 2014, per NBC News, the Air Force admitted it had not submitted his records to the FBI background check system that would have prevented him from purchasing weapons allegedly used in the church shooting.

"Initial information indicates that Kelley's domestic violence offense was not entered into the National Criminal Information Center database," Air Force representative Ann Stefanek in a statement shortly after the shooting, per New York magazine.

CNN said that since the shooting, the U.S. Department of Defense has pushed the military branches to update the FBI database so members kicked out of the service and now banned from owning firearms could be tracked.

The number of people banned from owning firearms because they were dishonorably discharged from the military was roughly 11,000 in 2015. After the church shooting, the number jumped to 14,825 in November, increased to 15,583 in December, to 15,597 now, CNN said.

The Air Force, particularly, is under scrutiny by the Pentagon's Office of Inspector General for how it failed to process Kelley's case file, but other branches are being examined as well, CNN said.

A 2017 Inspector General report revealed that military branches are failing to report the final status of 31 percent of its cases to the FBI, CNN said.

The military’s gun-ban list kept by the FBI for dishonorably discharged service members exploded with more than 4,000 additional names -- 38 percent -- since an ex-airman killed dozens at a Texas church in November. Each branch of the service was responsible for keeping the list updated.